Cheap alarm

Hi all,
reading about people's concerns about using Aires or 'wilding' I wondered if this alarm would be useful. It comes with a mounting bracket and could be mounted adjacent to the hab door and the lanyard clipped to the door, set last thing at night if someone manages to open the door the high pitched alarm will disorientate and drive the burglar off, hopefully it would wake you too!

Hi Yes its a good idea if you look back i posted similar about a year ago we have three personal alarms 2 for the cab doors and one for the hab we dont use them all the time but just if its a quiet aire and not well lit. Our one makes noise and light flashes they are really loud.